Technical guides and manufacturing insights for pressure vessel importers and distributors. Written by the engineering team at HM Tanks — factory-direct pressure tank manufacturer since 2019.
A step-by-step engineering guide to calculating the correct expansion tank size for closed-loop hydronic heating systems. Covers acceptance volume, system volume estimation, fill pressure, and relief valve settings — with worked examples for residential and commercial installations.
A comprehensive guide to ASME Boiler and Pressure Vessel Code (BPVC) certification for international buyers sourcing pressure vessels from China. Covers ASME Section VIII Division 1 requirements, U-Stamp vs UM-Stamp differences, documentation needed for customs clearance, and how to verify a supplier's ASME credentials.
A detailed comparison of plastic, steel, and plasteel reverse osmosis storage tanks. Material properties, FDA compliance, pressure ratings, diaphragm technology, cost analysis, and application-specific recommendations for residential, commercial, and industrial RO systems.
A behind-the-scenes look at how pressure tanks are manufactured — from raw steel coil to finished, tested product. Covers the 7-stage production process: material inspection, stamping & forming, welding, surface treatment, assembly, pressure testing, and final QC. With photos from our 40,000 sqm Linyi factory.
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Step-by-step engineering guide to calculating the correct air receiver tank size. CFM-based sizing formula, worked example for manufacturing plant, vertical vs horizontal selection, material comparison, and ASME requirements — with a quick-reference sizing table for compressors from 10 to 500 CFM.